Genre
Technical reports
33
Legislative hearings
25
Conference papers and proceedings
15
Treaties
11
Congresses
7
Periodicals
6
Bibliographies
4
Abstracts
2
Handbooks and manuals
2
Popular works
2
Tables (Data)
2
Examinations
1
Indexes
1
Instructional television programs
1
Legislative materials
1
Nonfiction television programs
1
Serial publications
1
Statistics
1
Vital statistics
1